19-0114; Rev 2; 12/96
Improved, SPST/SPDT Analog Switches
_______________General Description
Maxim’s redesigned DG417/DG418/DG419 precision,
CMOS, monolithic analog switches now feature guar-
anteed on-resistance matching (3Ω max) between
switches and guaranteed on-resistance flatness over
the signal range (4Ω max). These switches conduct
equally well in either direction and guarantee low
charge injection, low power consumption, and an ESD
tolerance of 2000V minimum per Method 3015.7. The
new design offers low off-leakage current over temper-
ature (less than 5nA at +85°C).
The DG417/DG418 are single-pole/single-throw (SPST)
switches. The DG417 is normally closed, and the
DG418 is normally open. The DG419 is single-
pole/double-throw (SPDT) with one normally closed
switch and one normally open switch. Switching times
are less than 175ns max for t
ON
and less than 145ns
max for t
OFF
. Operation is from a single +10V to +30V
supply, or bipolar ±4.5V to ±20V supplies. The
improved DG417/DG418/DG419 are fabricated with a
44V silicon-gate process.
______________________New Features
o
Plug-In Upgrades for Industry-Standard
DG417/DG418/DG419
o
Improved R
DS(ON)
Match Between Channels
(3Ω max, DG419 only)
o
Guaranteed R
FLAT(ON)
Over Signal Range (4Ω max)
o
Improved Charge Injection (10pC max)
o
Improved Off-Leakage Current Over Temperature
(<5nA at +85°C)
o
Withstand Electrostatic Discharge (2000V min)
per Method 3015.7
DG417/DG418/DG419
__________________Existing Features
o
Low R
DS(ON)
(35Ω max)
o
Single-Supply Operation +10V to +30V
Bipolar-Supply Operation
±4.5V
to
±20V
o
Low Power Consumption (35µW max)
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
________________________Applications
Sample-and-Hold Circuits
Test Equipment
Modems
Guidance and Control Systems
Audio Signal Routing
Communications Systems
Battery-Operated Systems
Fax Machines
PBX, PABX
Military Radios
______________Ordering Information
PART
DG417CJ
DG417CY
DG417C/D
DG417DJ
DG417DY
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
S
N.C.
1
2
8
7
6
D
V-
IN
VL
S
N.C.
1
2
8
7
6
D
V-
IN
VL
D
S1
1
2
8
7
6
S2
V-
IN
VL
GND
3
V+
4
GND
3
V+
4
GND
3
V+
4
DG417
DIP/SO
DG417
LOGIC
0
1
SWITCH
ON
OFF
5
DG418
DIP/SO
DG418
LOGIC
0
1
SWITCH
OFF
ON
5
DG419
DIP/SO
DG419
SWITCH 1
ON
OFF
5
LOGIC
0
1
SWITCH 2
OFF
ON
N.C. = NO INTERNAL CONNECTION
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Improved, SPST/SPDT Analog Switches
DG417/DG418/DG419
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
V+ .......................................................................................44V
GND....................................................................................25V
VL ..................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs V
S
, V
D
(Note 1) .........(V- - 2V) to (V+ + 2V) or 30mA
(whichever occurs first)
Continuous Current (any terminal) (Note 1) ........................30mA
Peak Current, S or D (pulsed at 1ms, 10% duty cycle max)..100mA
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C) ..........................471mW
CERDIP (derate 8.00mW/°C above +70°C) ..................640mW
Operating Temperature Ranges
DG41_C_ .............................................................0°C to +70°C
DG41_D_ ..........................................................-40°C to +85°C
DG41_AK ........................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
Signals on S, D, or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, V
L
= 5V, GND = 0V, V
INL
= 0.8V, V
INH
= 2.4V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
Drain-Source
On-Resistance
On-Resistance Match
Between Channels
(Note 4)
On-Resistance Flatness
(Note 4)
Source-Off
Leakage Current
(Note 5)
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
V
S_
, V
D
R
DS(ON)
(Note 3)
C, D
V+ = 13.5V, V- = -13.5V, T = +25°C
A
V
D
= ±10V,
A
I
S
= -10mA
T
A
= T
MIN
to T
MAX
V+ = 15V, V- = -15V,
V
D
= ±10V,
I
S
= -10mA
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-15
20
20
15
35
30
45
3
4
4
6
V
Ω
∆R
DS(ON)
Ω
V+ = 15V, V- = -15V,
R
FLAT(ON)
V
D
= ±5V,
I
S
= -10mA
Ω
I
S(OFF)
V+ = 16.5V, V- = -16.5V, T
A
= +25°C
V
D
= ±15.5V,
T
A
= T
MIN
to
V
S
= 15.5V
T
MAX
±
T
A
= +25°C
DG417/
DG418 T
A
= T
MIN
to
T
MAX
T
A
= +25°C
DG419
T
A
= T
MIN
to
T
MAX
T
A
= +25°C
T
A
= T
MIN
to
T
MAX
T
A
= +25°C
DG419
T
A
= T
MIN
to
T
MAX
-0.25
C, D
A
C, D
A
C, D
A
C, D
A
C, D
A
-5
-20
-0.25
-5
-20
-0.75
-10
-40
-0.4
-10
-40
-0.75
-10
-40
-0.1
0.1
0.25
5
20
0.25
5
20
0.75
10
40
0.4
10
40
0.75
10
40
nA
nA
nA
Drain-On
Leakage Current
(Note 5)
I
D(ON)
V+ = 16.5V,
V- = -16.5V,
V
D
= ±15.5V,
V
S
= ±15.5V
2
_______________________________________________________________________________________
±
Drain-Off
Leakage Current
(Note 5)
I
D(OFF)
V+ = 16.5V,
V- = -16.5V,
V
D
= ±15.5V,
V
S
= 15.5V
DG417/
DG418
Improved, SPST/SPDT Analog Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
L
= 5V, GND = 0V, V
INL
= 0.8V, V
INH
= 2.4V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
DG417/DG418/DG419
PARAMETER
LOGIC INPUT
Logic Input Current with
Input Voltage High
Logic Input Current with
Input Voltage Low
DYNAMIC
Turn-On Time
Turn-Off Time
Transition Time
Break-Before-Make
Interval
Charge Injection (Note 3)
Off-Isolation
Rejection Ratio (Note 6)
Crosstalk (Note 7)
Drain Off-Capacitance
Source Off-Capacitance
Drain-Source
On-Capacitance
SUPPLY
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
I
INH
I
INL
V
IN
= 2.4V
V
IN
= 0.8V
-0.5
-0.5
0.005
0.005
0.5
0.5
µA
µA
t
ON
t
OFF
t
TRANS
t
D
Q
OIRR
DG417/DG418,
V
D
= ±10V, Figure 2
DG417/DG418,
V
D
= ±10V, Figure 2
DG419,
V
S
= ±10V, Figure 3
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
5
100
60
175
250
145
210
175
250
ns
ns
ns
ns
DG419, V
S1
= V
S2
= ±10V
,
Figure 4, T
A
= +25°C
V
GEN
= 0V, Figure 5, T
A
= +25°C
R
L
= 500Ω, C
L
= 5pF, f = 1MHz, Figure 6, T
A
= +25°C
DG419, R
L
= 50Ω, C
L
= 5pF, f = 1MHz, Figure 7,
T
A
= +25°C
13
3
68
85
8
8
30
35
10
pC
dB
dB
pF
pF
pF
C
D (OFF)
C
S (OFF)
C
D (ON)
or
C
S (ON)
V
D
= 0V, f = 1MHz, Figure 8,
T
A
= +25°C
V
D
= 0V, f = 1MHz, Figure 8,
T
A
= +25°C
V
S
= 0V, f = 1MHz,
Figure 9,
T
A
= +25°C
DG417/DG418
DG419
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-1
-5
-1
-5
-1
-5
-1
-5
I+
I-
I
L
I
GND
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
V+ = 16.5V, V- = -16.5V,
V
IN
= 0V or 5V
-0.0001
-0.0001
-0.0001
-0.0001
1
5
1
5
1
5
1
5
µA
µA
µA
µA
_______________________________________________________________________________________
3
Improved, SPST/SPDT Analog Switches
DG417/DG418/DG419
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, VL = 5V, GND = 0V, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= +25°C, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
Drain-Source On-Resistance
DYNAMIC
Turn-On Time
Turn-Off Time
Break-Before-Make Interval
Charge Injection (Note 3)
SUPPLY
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
V
ANALOG
R
DS(ON)
t
ON
t
OFF
t
D
Q
(Note 3)
I
S
= -10mA, V
D
= 3.8V, V+ = 10.8V
DG417/DG418, V
D
= 8V, Figure 2
DG417/DG418, V
D
= 8V, Figure 2
DG419, R
L
= 1000Ω, C
L
= 35pF, Figure 4
C
L
= 10nF, V
GEN
= 0V, R
GEN
= 0V, Figure 5
All channels on or off, V+ = 13.2V,
V
L
= 5.25V, V
IN
= 0V or 5V
All channels on or off, V+ = 13.2V,
V
L
= 5.25V, V
IN
= 0V or 5V
All channels on or off, V
L
= 5.25V,
V
IN
= 0V or 5V
All channels on or off, V
L
= 5.25V,
V
IN
= 0V or 5V
0
40
110
40
60
2
12
100
V
Ω
ns
ns
ns
10
pC
I+
I-
I
L
I
GND
-0.0001
-0.0001
-0.0001
-0.0001
µA
µA
µA
µA
Note 2:
Typical values are for
design aid only,
are not guaranteed, and are not subject to production testing. The algebraic
convention where the most negative value is a minimum and the most positive value a maximum is used in this data sheet.
Note 3:
Guaranteed by design.
Note 4:
On-resistance match between channels and flatness is guaranteed only with bipolar-supply operation. Flatness is defined as
the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the specified
analog range.
Note 5:
Leakage parameters I
S(OFF)
, I
D(OFF)
, and I
D(ON)
are 100% tested at the maximum rated hot temperature and guaranteed by
correlation at +25°C.
Note 6:
Off-Isolation Rejection Ratio = 20log (V
D
/V
S
), V
D
= output, V
S
= input to off switch.
Note 7:
Between any two switches.
4
_______________________________________________________________________________________
Improved, SPST/SPDT Analog Switches
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
DG417/DG418/DG419
ON-RESISTANCE vs. V
D
AND
POWER-SUPPLY VOLTAGE
45
40
R
DS(ON)
(Ω)
35
30
25
20
15
10
5
-20
-10
0
V
D
(V)
10
20
5
-20
A: V+ = 5V,
V- = -5V
B: V+ = 10V,
V- = -10V
C: V+ = 15V,
V- = -15V
D: V+ = 20V,
V- = -20V
DG417-01
ON-RESISTANCE vs. V
D
AND
TEMPERATURE
DG417-02
ON-RESISTANCE vs. V
D
(SINGLE SUPPLY)
V- = 0V
120
100
80
60
V+ = 5V
DG417-03
50
35
30
25
20
15
V+ = 15V
V- = -15V
T
A
= +125°C
140
A
R
DS(ON)
(Ω)
B
C
D
T
A
= -55°C
10
T
A
= +25°C
40
20
-10
0
V
D
(V)
10
20
0
5
10
V
D
(V)
15
20
V+ = 10V
V+ = 15V
V+ = 20V
ON-RESISTANCE vs. V
D
AND
TEMPERATURE
DG417-04
OFF-LEAKAGE CURRENT vs.
TEMPERATURE
DG417-05
R
DS(ON)
(Ω)
T
A
= +85°C
ON-LEAKAGE CURRENT vs.
TEMPERATURE
V+ = 16.5V
V- = -16.5V
V
D
= ±15V
V
S
= ±15V
DG417-06
70
60
50
T
A
= +85°C
40
T
A
= +25°C
30
20
10
0
5
10
V
D
(V)
15
V+ = 12V
V- = 0V
T
A
= +125°C
R
DS(ON)
(Ω)
100
10
OFF-LEAKAGE (nA)
1
0.1
0.01
V+ = 16.5V
V- = -16.5V
V
D
= ±15V
V
S
= 15V
±
100
10
ON-LEAKAGE (nA)
1
0.1
0.01
0.001
0.0001
20
-75
25
TEMPERATURE (°C)
125
0.001
0.0001
-75
25
TEMPERATURE (°C)
125
CHARGE INJECTION vs.
ANALOG VOLTAGE
DG417-07
SUPPLY CURRENT vs.
TEMPERATURE
A:
B:
C:
A
B
C
0.01
0.001
0.0001
I+ at V+ = 16.5V
I- at V- = -16.5V
I
L
at V
L
= 5V
DG417-08
60
40
20
Q (pC)
0
-20
-40
-60
-20 -15 -10
-5
0
V
D
(V)
5
10
15
V+ = 15V
V- = -15V
100
10
1
0.1
I+, I-, I
L
(µA)
20
-75
25
TEMPERATURE (°C)
125
_______________________________________________________________________________________
5
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